Tomorrow’s Tech Treepowered by Astra

Semiconductors & Chipmaking · Recorded milestone

High-k metal gate transistors

Recorded year2007

Intel's 45 nm Penryn chips swap the silicon dioxide gate insulator for hafnium oxide, stopping current leaking through thin gates.

Explore this milestone on the interactive map

Built on

Led to

Sources & evidence

Dataset updated 2026-10-18. This individual record has not been separately re-reviewed.